<!doctype html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>BackgroundSyncBrowserTest helper page</title>
    <script>
      window.onload = async () => {
        let registration = await navigator.serviceWorker.register('/background_sync_sw.js');
        navigator.serviceWorker.ready.then((registration) => {
          registration.sync.register('test-tag');
        });
      }
    </script>
  </head>
  <body>
    BackgroundSyncBrowserTest helper page
  </body>
</html>
